A recent study conducted on a large scare found out that people who are obese are at a greater risk of developing dementia than those who have a normal body mass index (BMI). The researchers reached the conclusion after evaluation the data of 1.3 million adults.
The researchers, during the study, found out that each five-unit increase inBMI was linked with a 16-33 per cent higher risk of developing the delibitating condition. Five BMI units is 14.5kg for a person who is five feet and seven inch (170cm) tall, according to reports.
The study indicated that if a person maintains a healthy weight, they can then prevent or delay dementia. The researchers also noted that people who are on the onset of developing dementia tend to have a lower body weight than those who have very low risk of developing the condition.
Commenting on the findings of the study, the lead author Professor Mika Kivimaki of University College London said, “The BMI-dementia association observed in longitudinal population studies, such as ours, is actually attributable to two processes.”
The researchers, during the study, set to study the adverse effect of excess body fat on risk of developing dementia and also to evaluate the weight loss because of pre-clinical dementia. The researchers pooled individual-level data from 39 longitudinal population studies from the United States and Europe.
“For this reason, people who develop dementia may have a higher-than-average body mass index some 20 years before dementia onset, but close to overt dementia have a lower BMI than those who remain healthy,” Kivimaki said.
The researchers, after evaluating the data, concluded that excess body fat had adverse effect on the risk of developing the condition, and also weight loss caused by metabolic changes during the pre-dementia stage.
The findings of the study were published in the Alzheimer’s & Dementia journal.